/*
 * Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.xml2;

import com.caucho.util.L10N;
import com.caucho.vfs.ReadStream;
import com.caucho.vfs.TempCharBuffer;
import com.caucho.vfs.Vfs;
import com.caucho.xml.ExtendedLocator;
import com.caucho.xml.QName;
import com.caucho.xml.XmlChar;

import org.xml.sax.*;

import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.util.HashMap;

public final class InternQName {
  final InternQName _next;
    
  final char []_buf;
  final int _colon;

  String _name;
  String _prefix;
  String _localName;

  InternQName(InternQName next,
              char []buf, int offset, int length,
              int colon)
  {
    _next = next;
      
    _buf = new char[length];
    System.arraycopy(buf, offset, _buf, 0, length);

    _colon = colon - offset;
  }

  public final boolean match(char []buf, int offset, int length)
  {
    if (length != _buf.length)
      return false;

    char []entryBuf = _buf;
      
    for (length--; length >= 0; length--) {
      if (entryBuf[length] != buf[offset + length])
        return false;
    }

    return true;
  }

  public final String getName()
  {
    if (_name == null)
      _name = new String(_buf, 0, _buf.length);

    return _name;
  }

  public final String getNamespaceURI()
  {
    return "";
  }

  public final String getLocalName()
  {
    if (_localName == null) {
      if (_colon == 0)
        _localName = _name;
      else
        _localName = new String(_buf, _colon + 1, _buf.length - _colon - 1);
    }

    return _localName;
  }
}
